Question 1

Is T21.4 a billable ICD-10 code?

Accepted Answer

No, T21.4 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code T21.4 mean?

Accepted Answer

ICD-10-CM code T21.4 represents Corrosion of unspecified degree of trunk. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

What is the parent category for ICD-10 code T21.4?

Accepted Answer

The parent category for T21.4 is T21 (Burn and corrosion of trunk). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 4

Should I use additional codes with T21.4?

Accepted Answer

Yes, when coding T21.4, consider adding codes for: external cause code to identify place (Y92). Additional codes provide more specificity about the patient's condition.

T21.42026

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